I personally haven't seen any coyotes climb trees, but I know of one incident where it did happen. Vargy (on the houndsman forum mostly) has a couple pictures of a coyote that climbed a tree in a pen, i guess to get away from the hounds. He posted the pics on the houndsman forum a year ago, I went back and found them, but all thats there is the dreded red X. I won't say that it can't happen because I'm sure it can. But it would be rare. And com'on surely if we've all been hunting for several years, HOPEFULLY we'd know the difference between a gray fox and a coyote pup??? See ya, MOyotehunter